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Finding the Fourth Proportional to 1,114.44, 1,536.66 and 937.68

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Solution

The fourth proportional to 1,114.44, 1,536.66 and 937.68 is: 1,292.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114.44 : 1,536.66 = 937.68 : x
  2. Step 2: Convert to fraction form
    1,114.44/1,536.66 = 937.68/x
  3. Step 3: Cross multiply
    1,114.44x = 1,536.66 × 937.68
  4. Step 4: Simplify right side
    1,114.44x = 1,440,895.35
  5. Step 5: Solve for x
    x = 1,440,895.35/1,114.44
  6. Step 6: Final answer
    x = 1,292.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.